Humans are the most advanced and dominant species on earth. There are so many processes taking place within our body we are unaware of. Here are some of the interesting things and amazing facts about the human body which you probably didn’t know. The human body is really amazing. It is like a complex machine with different parts for different functions.
Facts about the human body:
Have you ever heard about colors or see the smells?
Well! one in 25,000 persons, hears the colors and sees the smell. This
process is known as synesthesia. In this condition, there two senses are perceived
at a time.
We all normally notice that when we look at the sky, we mostly
see small worm-shaped moving objects. Do you know why it happens? This phenomenon is called as Blue Field Entopic Phenomenon. These moving dots are actually white blood cells, which move in our eye’s blood vessels. As we know, Retina is present back in our eyes which having photoreceptor cells that detect incoming
light. These photoreceptor cells give signals to our brain, through our brain
uses these signals to make 3D images outside by which we see the world. When we look at the sky, Blue
Light enters our eye's blood vessels. Red blood vessels absorb this blue light
while white blood cells can’t absorb it and when blue light enters
photoreceptor cells, these cells send increase brightness signals to our brain.
That’s why our white blood cells seem like white spots.
Another amazing fact is our eyes blink 10-20 times per minute
and blink almost 5.2 to 7.1 million times per year. Why do our eyes
bling? Blinking is important for our eyes. Blinking spread the oil, water, mucus, etc, and remove dust from our
eyes.
Do you know why we yawn? When one of us yawns, we think we want
to sleep. But this is not the reason behind yawning. Recently, according to research, when our brain temperature increases we yawn. As we know, our
brain uses 20% energy of our body. For example, when we use constantly any electrical
appliance, it gets warm. Same when we work consistently, our brain’s
temperature increases. To lower this temperature, our brain needs cold and
more blood flow, that’s why we yawn.
Do you know how much we need to sleep daily? A newborn baby
needs 16-18 hours of sleep, 5 years old child needs 10-11 hours of sleep, an adult
need 7-8 hours of sleep, and an old person needs 5 hours of sleep. We spent most of
the time sleeping. If a person lives 60 years, he/she spent 20 years in the sleep process. When we sleep, different things happen to our body like height increase
almost one inch.
Why do our eyes move during sleep? Different studies assume our
eyes move because our eyes follow images of our dreams. Likewise, an average
human being lives alive 3 minutes without oxygen, lives 3-5 days without water, and without food lives for at least 40 days. When we sneeze, it travels from
160km/h speed.
Every second, your body produces 25 million new cells. More
than half of your bones are in the hands, wrists, feet, and ankles. Pound
for pound, your bones are stronger than steel. A block of bone the size of a
matchbox can support up to 18,000 pounds of weight.
There are many more amazing and interesting facts about our
human body. So we should care about our body to be safe and healthy.
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